JSON and data frames

The elements are rows, so putting them in a list column before doing unnest_wider() can happen directly:

df_row <- tibble(x = json_row)
df_row

## # A tibble: 3 × 1
##   x               
##   <list>          
## 1 <named list [2]>
## 2 <named list [2]>
## 3 <named list [2]>